Datasheet

Data Sheet AD9245
Rev. E | Page 3 of 32
SPECIFICATIONS
DC SPECIFICATIONS
AVDD = 3 V, DRVDD = 2.5 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference, unless otherwise noted.
Table 1.
Parameter
AD9245BCP-20 AD9245BCP-40 AD9245BCP-65
Unit Min Typ Max Min Typ Max Min Typ Max
RESOLUTION 14 14 14 Bits
ACCURACY
No Missing Codes Guaranteed 14 14 14 Bits
Offset Error ±0.30 ±1.60 ±0.50 ±1.75 ±0.50 ±1.75 % FSR
Gain Error
1
±0.30 ±3.25 ±0.50 ±3.25 ±0.50 ±6.90 % FSR
Differential Nonlinearity (DNL)
2
±0.50 ±1.00 ±0.50 ±1.00 ±0.50 ±1.00 LSB
Integral Nonlinearity (INL)
2
±1.20 ±3.10 ±1.40 ±3.40 ±1.60 ±5.55 LSB
TEMPERATURE DRIFT
1
Offset Error ±2 ±2 ±3 ppm/°C
Gain Error
±12
±12
±12
ppm/°C
INTERNAL VOLTAGE REFERENCE
Output Voltage Error (1 V Mode) ±5 ±35 ±5 ±35 ±5 ±35 mV
Load Regulation @ 1.0 mA
0.8
0.8
0.8
mV
Output Voltage Error (0.5 V Mode) ±2.5 ±2.5 ±2.5 mV
Load Regulation @ 0.5 mA 0.1 0.1 0.1 mV
INPUT REFERRED NOISE
VREF = 0.5 V 2.28 2.28 2.28 LSB rms
VREF = 1.0 V 1.08 1.08 1.08 LSB rms
ANALOG INPUT
Input Span, VREF = 0.5 V 1 1 1 V p-p
Input Span, VREF = 1.0 V 2 2 2 V p-p
Input Capacitance
3
7 7 7 pF
REFERENCE INPUT RESISTANCE 7 7 7 kΩ
POWER SUPPLIES
Supply Voltages
AVDD 2.7 3.0 3.6 2.7 3.0 3.6 2.7 3.0 3.6 V
DRVDD 2.25 3.0 3.6 2.25 3.0 3.6 2.25 3.0 3.6 V
Supply Current
IAVDD
2
30 55 100 mA
IDRVDD
2
2
5
7
mA
PSRR ±0.01 ±0.01 ±0.01 % FSR
POWER CONSUMPTION
DC Input
4
90 165 300 mW
Sine Wave Input
2
95 120 180 220 320 375 mW
Standby Power
5
1.0 1.0 1.0 mW
1
Gain errors and gain temperature coefficients are based on the ADC only (with a fixed 1.0 V external reference).
2
Measured at maximum clock rate, low input frequency, full-scale sine wave, with approximately 5 pF loading on each output bit.
3
Input capacitance refers to the effective capacitance between one differential input pin and AGND.
4
Measured with dc input at maximum clock rate.
5
Standby power is measured with a dc input, the CLK pin inactive (that is, set to AVDD or AGND).